I have worked with A.D.R. Bulbs for almost 5 years now, and my company has sourced bulbs with them for longer than that. Communication is great - from ordering, to deliveries, to follow-ups on final product. I love the quality of the product as well as the service. We plant nearly 100,000 bulbs and A.D.R. keeps the whole process easy for us!
Louise Licata
, Bland Landscaping Co.
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Allium azureum, also known as caeruleum, reaches 18 to 32 inches tall, featuring 1.5-inch round flax-blue flower globes that bloom from late spring into early summer. Thriving in full sun and well-drained soil, it is drought-tolerant, deer-resistant, and attracts pollinators. Its slender stems and airy blooms create a delicate yet striking presence in borders, rock gardens, and mixed plantings.
| Description | Price | |||
|---|---|---|---|---|
| Bin Display Box of 250 Bulbs, Size 5/+ cm | $50.00 | |||
Get Notified When Back In StockComplete this form and we'll notify you when SKU BIN6411040 is restocked. | ||||
| 10 Retail Packages of 25 Bulbs, Size 5/+ cm | $55.00 | |||
Get Notified When Back In StockComplete this form and we'll notify you when SKU RET6031050 is restocked. | ||||
| Bulk Tray of 2500 Bulbs, Size 5/+ cm | $375.00 | |||
Get Notified When Back In StockComplete this form and we'll notify you when SKU BUL35120005 is restocked. | ||||
Timing: Plant in fall before the ground freezes to ensure proper root development. Ideal soil temperature for planting is 60°F or colder.
Location: Choose a sunny, well-drained spot—poor drainage can cause bulb rot.
Depth & Spacing: Bury bulbs two to three times their height and space them six to twelve inches apart for optimal growth.
Soil: Maintain a pH of 6 to 7 and enrich with organic matter for better drainage.
Watering: Keep soil moist but not soggy during initial growth; once established, alliums are drought-tolerant.
Foliage Management: Leaves yellow after blooming—plant among perennials to disguise fading foliage.
Deadheading: Remove spent flowers to prevent self-seeding unless you want naturalized clusters.
Fertilization: Apply a balanced fertilizer in early spring to support strong blooms.
Pest & Disease Resistance: Alliums are deer and rabbit resistant but avoid planting in areas with excessive moisture to prevent fungal issues.
Crop Rotation: Change planting locations yearly to prevent soil-borne diseases.
| Height | 20 Inches |
| Spread | 2-4 Inches |
| Spacing | 6-8 Inches |
| Hardiness Zone | 4-7 |
| Color |
Blue |
Check back soon for additional details.